{
  "p": "mrc-721",
  "miner": {
    "name": "MINERAL",
    "max": "5000",
    "lim": "50"
  },
  "token": {
    "tick": "mine",
    "total": "2100000000000000",
    "beg": "5000000000",
    "halv": "20000",
    "dcr": "0.5"
  }
}